// HugeIntX.h: interface for the CHugeIntX class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_HUGEINTX_H__5B7DCBAC_6D89_4C55_B51F_D96B5E741B51__INCLUDED_)
#define AFX_HUGEINTX_H__5B7DCBAC_6D89_4C55_B51F_D96B5E741B51__INCLUDED_

#if _MSC_VER > 1000
	#pragma once
#endif // _MSC_VER > 1000

#include "HugeCalc.h"
#include "RadixConverter.h"

class CHugeSIntX;
class CHugeIntX;

typedef struct tagCVECTOR_HHUGEINTX
{
	CONST CHugeIntX ** p_start;
	UINT32 u32Size;

#ifdef __cplusplus
	tagCVECTOR_HHUGEINTX( CONST CHugeIntX ** CONST _p_start = NULL, CONST UINT32 _u32Size = 0 )
		: p_start( _p_start ), u32Size( _u32Size )
	{
	};
#endif
} CVECTOR_HHUGEINTX, FAR *PCVECTOR_HHUGEINTX;
typedef CONST CVECTOR_HHUGEINTX FAR *LPCVECTOR_HHUGEINTX;

#define HX_API HUGECALC_API

class HX_API CHugeIntX
{
	friend class CHugeInt;
	friend CRadixConverter& CRadixConverter::operator =( CONST CHugeIntX& right );
	// CompareAbs
	HX_API friend CONST SINT32 CompareAbs( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST SINT32 CompareAbs( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST SINT32 CompareAbs( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST SINT32 CompareAbs( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST SINT32 CompareAbs( CONST CHugeIntX& left, CONST CHugeIntX& right );

	// Compare
	HX_API friend CONST SINT32 Compare( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST SINT32 Compare( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST SINT32 Compare( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST SINT32 Compare( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST SINT32 Compare( CONST CHugeIntX& left, CONST CHugeIntX& right );

	// PowMod
	HX_API friend CONST UINT32 PowMod( CONST UINT32 u32Base, CONST CHugeIntX& hugeExp, CONST UINT32 u32Mod );
	HX_API friend CONST SINT64 PowMod( CONST CHugeIntX& hugeBase, CONST UINT32 u32Exp, CONST UINT32 u32Mod );
	HX_API friend CONST SINT64 PowMod( CONST CHugeIntX& hugeBase, CONST SINT32 s32Exp, CONST UINT32 u32Mod );
	HX_API friend CONST SINT64 PowMod( CONST CHugeIntX& hugeBase, CONST CHugeIntX& hugeExp, CONST UINT32 u32Mod );

	// relation operators
	HX_API friend CONST BOOL operator ==( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST BOOL operator ==( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator ==( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST BOOL operator ==( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST BOOL operator ==( CONST CHugeIntX& left, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator !=( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST BOOL operator !=( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator !=( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST BOOL operator !=( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST BOOL operator !=( CONST CHugeIntX& left, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator <( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST BOOL operator <( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator <( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST BOOL operator <( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST BOOL operator <( CONST CHugeIntX& left, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator <=( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST BOOL operator <=( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator <=( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST BOOL operator <=( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST BOOL operator <=( CONST CHugeIntX& left, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator >( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST BOOL operator >( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator >( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST BOOL operator >( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST BOOL operator >( CONST CHugeIntX& left, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator >=( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST BOOL operator >=( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST BOOL operator >=( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST BOOL operator >=( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST BOOL operator >=( CONST CHugeIntX& left, CONST CHugeIntX& right );

	// +
	HX_API friend CONST CHugeIntX operator +( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST CHugeIntX operator +( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST CHugeIntX operator +( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST CHugeIntX operator +( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST CHugeIntX operator +( CONST CHugeIntX& left, CONST CHugeIntX& right );

	// -
	HX_API friend CONST CHugeIntX operator -( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST CHugeIntX operator -( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST CHugeIntX operator -( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST CHugeIntX operator -( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST CHugeIntX operator -( CONST CHugeIntX& left, CONST CHugeIntX& right );

	// *
	HX_API friend CONST CHugeIntX operator *( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST CHugeIntX operator *( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST CHugeIntX operator *( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST CHugeIntX operator *( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST CHugeIntX operator *( CONST CHugeIntX& left, CONST CHugeIntX& right );

	// Division, return quotient
	HX_API friend CONST SINT64 Div( CONST UINT32 u32Dividend, CONST CHugeIntX& hugeDivisor, UINT32 * CONST pRemainder = NULL );
	HX_API friend CONST SINT32 Div( CONST SINT32 s32Dividend, CONST CHugeIntX& hugeDivisor, SINT32 * CONST pRemainder = NULL );

	// /
	HX_API friend CONST SINT64 operator /( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST SINT32 operator /( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST CHugeIntX operator /( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST CHugeIntX operator /( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST CHugeIntX operator /( CONST CHugeIntX& left, CONST CHugeIntX& right );

	// %
	HX_API friend CONST UINT32 operator %( CONST UINT32 u32Num, CONST CHugeIntX& right );
	HX_API friend CONST SINT32 operator %( CONST SINT32 s32Num, CONST CHugeIntX& right );

	HX_API friend CONST SINT64 operator %( CONST CHugeIntX& left, CONST UINT32 u32Num );
	HX_API friend CONST SINT32 operator %( CONST CHugeIntX& left, CONST SINT32 s32Num );

	HX_API friend CONST CHugeIntX operator %( CONST CHugeIntX& left, CONST CHugeIntX& right );

public:
	// Constructor
	explicit CHugeIntX( VOID );
	explicit CHugeIntX( CONST SINT32& s32Num );
	explicit CHugeIntX( CONST SINT64& s64Num );
	explicit CHugeIntX( CONST UINT32& u32Num );
	explicit CHugeIntX( CONST UINT64& u64Num );
	explicit CHugeIntX( CONST LPCTSTR lpszNum );
	explicit CHugeIntX( CONST CRadixConverter& RadixConverter );
	explicit CHugeIntX( CONST CHugeIntX& right );
	explicit CHugeIntX( CONST CHugeInt& right );

	// destructor
	/*virtual */~CHugeIntX( );

	static CONST UINT32 GetCount( VOID );

	// reload operator ->
	CHugeIntX * CONST operator ->( VOID );

	// get property
	CONST SIGN GetSign( VOID ) CONST;
	CONST BOOL operator !( VOID ) CONST;
	CONST BOOL IsAbsOne( VOID ) CONST;
	CONST BOOL IsOdd( VOID ) CONST;
	CONST BOOL IsEven( VOID ) CONST;
	CONST BOOL IsBitOne( CONST UINT32 u32BitIndex ) CONST;
	CONST BOOL IsPrime( VOID ) CONST;
	CONST PRIMALITY TestPrimality( CONST UINT32 u32Repeat = 5 ) CONST;
	CONST UINT32 GetBits( VOID ) CONST;
	CONST UINT32 GetDigits( VOID ) CONST;
	CONST UINT32 GetTailBitZeros( VOID ) CONST;

	// Return non-zero if the value of (*this) fits in SINT32, UINT32, SINT64 or UINT64, respectively. Otherwise, return zero.
	operator CONST SINT32( VOID ) CONST;
	operator CONST SINT64( VOID ) CONST;
	operator CONST UINT32( VOID ) CONST;
	operator CONST UINT64( VOID ) CONST;
	// as GetStr( FS_FS_NORMAL )
	operator CONST LPCTSTR( VOID ) CONST;

	CONST CHugeIntX operator -( VOID ) CONST;

	CHugeIntX& Abs( VOID );
	CHugeIntX& Negate( VOID );
	CHugeIntX& Swap( CHugeIntX& right );

	CHugeIntX& Ceil( CONST UINT32 u32Bits );
	CHugeIntX& Truncate( CONST UINT32 u32Bits );
	CHugeIntX& Floor( CONST UINT32 u32Bits );

	CHugeIntX& Random( CONST UINT32 u32Bits );
	CHugeIntX& GeneratePrime( CONST UINT32 u32Bits );

	// Returns the largest prime number less than the argument.
	CHugeIntX& PreviousPrime( CONST CHugeIntX& hBenchmark );
	// Returns the smallest prime number greater than the argument.
	CHugeIntX& NextPrime( CONST CHugeIntX& hBenchmark );

	// reload operators
	CHugeIntX& operator =( CONST SINT32& s32Num );
	CHugeIntX& operator =( CONST SINT64& s64Num );
	CHugeIntX& operator =( CONST UINT32& u32Num );
	CHugeIntX& operator =( CONST UINT64& u64Num );
	CHugeIntX& operator =( CONST LPCTSTR lpszNum );
	CHugeIntX& operator =( CONST CRadixConverter& RadixConverter );
	CHugeIntX& operator =( CONST CHugeIntX& right );
	CHugeIntX& operator =( CONST CHugeInt& right );

	CHugeIntX& SetHexStr( CONST LPCTSTR lpszHexNum );

	CHugeIntX& SetText( CONST LPCTSTR lpszText );

	CHugeIntX& operator +=( CONST UINT32 u32Num );
	CHugeIntX& operator +=( CONST SINT32 s32Num );
	CHugeIntX& operator +=( CONST CHugeIntX& right );

	CHugeIntX& operator ++( VOID );
	CONST CHugeIntX operator ++( CONST INT );

	CHugeIntX& operator -=( CONST UINT32 u32Num );
	CHugeIntX& operator -=( CONST SINT32 s32Num );
	CHugeIntX& operator -=( CONST CHugeIntX& right );

	CHugeIntX& operator --( VOID );
	CONST CHugeIntX operator --( CONST INT );

	CHugeIntX& operator *=( CONST UINT32 u32Num );
	CHugeIntX& operator *=( CONST SINT32 s32Num );
	CHugeIntX& operator *=( CONST CHugeIntX& right );

	CHugeIntX& operator /=( CONST UINT32 u32Num );
	CHugeIntX& operator /=( CONST SINT32 s32Num );
	CHugeIntX& operator /=( CONST CHugeIntX& right );

	CHugeIntX& operator %=( CONST UINT32 u32Num );
	CHugeIntX& operator %=( CONST SINT32 s32Num );
	CHugeIntX& operator %=( CONST CHugeIntX& right );

	CHugeIntX& operator <<=( CONST UINT32 u32BitLShift );
	CHugeIntX& operator >>=( CONST UINT32 u32BitRShift );

	CONST CHugeIntX operator <<( CONST UINT32 u32BitLShift ) CONST;
	CONST CHugeIntX operator >>( CONST UINT32 u32BitRShift ) CONST;

	CHugeIntX& operator &=( CONST CHugeIntX& right );
	CHugeIntX& operator ^=( CONST CHugeIntX& right );
	CHugeIntX& operator |=( CONST CHugeIntX& right );

	CONST CHugeIntX operator &( CONST CHugeIntX& right ) CONST;
	CONST CHugeIntX operator ^( CONST CHugeIntX& right ) CONST;
	CONST CHugeIntX operator |( CONST CHugeIntX& right ) CONST;

	// Multiplication, return product
	CHugeIntX& Mul( CONST UINT32 u32Multiplicand, CONST CHugeIntX& hugeMultiplier );
	CHugeIntX& Mul( CONST SINT32 s32Multiplicand, CONST CHugeIntX& hugeMultiplier );

	CHugeIntX& Mul( CONST CHugeIntX& hugeMultiplicand, CONST UINT32 u32Multiplier );
	CHugeIntX& Mul( CONST CHugeIntX& hugeMultiplicand, CONST SINT32 s32Multiplier );

	CHugeIntX& Mul( CONST CHugeIntX& hugeMultiplicand, CONST CHugeIntX& hugeMultiplier );

	// Division, return quotient
	CHugeIntX& Div( CONST CHugeIntX& hugeDividend, CONST UINT32 u32Divisor, SINT64 * CONST pRemainder = NULL );
	CHugeIntX& Div( CONST CHugeIntX& hugeDividend, CONST SINT32 s32Divisor, SINT32 * CONST pRemainder = NULL );

	CHugeIntX& Div( CONST CHugeIntX& hugeDividend, CONST CHugeIntX& hugeDivisor, CHugeIntX * CONST pRemainder = NULL );

	CHugeIntX& Pow( CONST UINT32 u32Exp );
	CHugeIntX& Pow( CONST CHugeIntX& hugeBase, CONST UINT32 u32Exp );

	// Extraction
	CHugeIntX& Root( CONST CHugeIntX& hugeRadicand, CONST UINT32 u32Exp, CHugeIntX * CONST pRemainder = NULL, BOOL * CONST pIsReal = NULL );

	// Logarithm
	CONST UINT32 Log( CONST UINT32 u32Base, BOOL * CONST pIsExact = NULL ) CONST;
	CONST UINT32 Log( CONST CHugeIntX& hugeBase, BOOL * CONST pIsExact = NULL ) CONST;

	// PrimeFactorial(n) gives the product of the first n primes.
	CHugeIntX& PrimeFactorial( CONST UINT32 u32Index );
	// Primorial(n) gives the product of the primes less than or equal to n.
	CHugeIntX& Primorial( CONST UINT32 u32Num );

	// Factorial, Permutation, Combination
	CHugeIntX& Factorial( CONST UINT32 n );
	CHugeIntX& Factorial2( CONST UINT32 n );
	CHugeIntX& Permutation( CONST UINT32 n, CONST UINT32 r );
	CHugeIntX& Combination( CONST UINT32 n, CONST UINT32 r );

	// Fibonacci numbers
	CHugeIntX& Fibonacci( CONST SINT32 n );

	// Lucas numbers
	CHugeIntX& Lucas( CONST SINT32 n );

	// MulMod
	CHugeIntX& MulMod( CONST CHugeIntX& hugeMultiplicand, CONST CHugeIntX& hugeMultiplier, CONST CHugeIntX& hugeMod );
	CHugeIntX& MulMod( CONST CHugeIntX& hugeMultiplier, CONST CHugeIntX& hugeMod );

	// InvertMod: x = InvertMod( b, m ) && !(!x) <==> ( b * x ) mod m = 1
	CHugeIntX& InvertMod( CONST UINT32 u32InvertBase, CONST CHugeIntX& hugeMod );
	CHugeIntX& InvertMod( CONST CHugeIntX& hugeInvertBase, CONST CHugeIntX& hugeMod );
	CHugeIntX& InvertMod( CONST CHugeIntX& hugeMod );

	// PowMod
	CHugeIntX& PowMod( CONST UINT32 u32Base, CONST UINT32 u32Exp, CONST CHugeIntX& hugeMod );
	CHugeIntX& PowMod( CONST UINT32 u32Base, CONST SINT32 s32Exp, CONST CHugeIntX& hugeMod );
	CHugeIntX& PowMod( CONST UINT32 u32Base, CONST CHugeIntX& hugeExp, CONST CHugeIntX& hugeMod );
	CHugeIntX& PowMod( CONST CHugeIntX& hugeBase, CONST UINT32 u32Exp, CONST CHugeIntX& hugeMod );
	CHugeIntX& PowMod( CONST CHugeIntX& hugeBase, CONST SINT32 s32Exp, CONST CHugeIntX& hugeMod );
	CHugeIntX& PowMod( CONST CHugeIntX& hugeBase, CONST CHugeIntX& hugeExp, CONST CHugeIntX& hugeMod );

	// ModPowTwo: *this %= 2^u32Exp
	CHugeIntX& ModPowTwo( CONST UINT32 u32Exp );

	// Greatest Common Divisor
	CHugeIntX& Gcd( CONST UINT32 u32Num, CONST CHugeIntX& right );
	CHugeIntX& Gcd( CONST SINT32 s32Num, CONST CHugeIntX& right );
	CHugeIntX& Gcd( CONST CHugeIntX& left, CONST UINT32 u32Num );
	CHugeIntX& Gcd( CONST CHugeIntX& left, CONST SINT32 s32Num );

	CHugeIntX& Gcd( CONST CHugeIntX& left, CONST CHugeIntX& right );

	CHugeIntX& Gcd( CONST CVECTOR_HHUGEINTX& vLpHugeIntX );

	// GcdEx: g = GcdEx( x, y, u, v ) = u * x + v * y. g is always positive, even if one or both of u and v are negative.
	CHugeIntX& GcdEx( CHugeIntX& x, CHugeIntX& y, CONST CHugeIntX& u, CONST CHugeIntX& v );

	// Lowest Common Multiple
	CHugeIntX& Lcm( CONST CVECTOR_UINT32& vU32Num );

	CHugeIntX& Lcm( CONST UINT32 u32Num, CONST CHugeIntX& right );
	CHugeIntX& Lcm( CONST SINT32 s32Num, CONST CHugeIntX& right );
	CHugeIntX& Lcm( CONST CHugeIntX& left, CONST UINT32 u32Num );
	CHugeIntX& Lcm( CONST CHugeIntX& left, CONST SINT32 s32Num );

	CHugeIntX& Lcm( CONST CHugeIntX& left, CONST CHugeIntX& right );

	CHugeIntX& Lcm( CONST CVECTOR_HHUGEINTX& vLpHugeIntX );

	CHugeIntX& Product( CONST CVECTOR_UINT32& vU32Num );
	CHugeIntX& Product( CONST CVECTOR_HHUGEINTX& vLpHugeIntX );

	// if u32Exp==0, then call function: Product( ... );
	CHugeIntX& SumsOfLikePowers( CONST CVECTOR_UINT32& vU32Num, CONST UINT32 u32Exp = 1 );
	CHugeIntX& SumsOfLikePowers( CONST CVECTOR_HHUGEINTX& vLpHugeIntX, CONST UINT32 u32Exp = 1 );

	// Output
	CONST LPCTSTR GetStr( CONST BYTE byFormat = FS_DEFAULT, UINT32 * CONST pStrLen = NULL ) CONST;

	// no "0x"
	CONST LPCTSTR GetHexStr( CONST BYTE byFormat = FS_DEFAULT, UINT32 * CONST pStrLen = NULL ) CONST;

	// This function can convert the huge integer to a string of digits in another Radix system.
	CONST LPCTSTR GetStrRadix( CONST UINT32 u32Radix = 10, UINT32 * CONST pDigits = NULL, CONST BYTE byFormat = FS_DEFAULT, CONST UINT32 u32BandLength = 3, UINT32 * CONST pStrLen = NULL ) CONST;

	CONST LPCTSTR GetText( VOID ) CONST;

	VOID FreeStrBuffer( VOID ) CONST;

protected:

private:
	explicit CHugeIntX( CONST CHugeSIntX& right );
	CHugeIntX& operator =( CONST CHugeSIntX& right );

	CHugeSIntX * CONST m_pSHuge;
};

#endif // !defined(AFX_HUGEINTX_H__5B7DCBAC_6D89_4C55_B51F_D96B5E741B51__INCLUDED_)